RT Book T1 Effectiveness of programmes to reduce school bullying: a systematic review; report prepared for the Swedish National Council for Crime Prevention T2 [Brå-rapport] A1 Ttofi, Maria M. A1 Farrington, David 1944- A1 Baldry, Anna C. LA English PP Stockholm PB Swedish National Council for Crime Prevention, Information and publications YR 2008 UL https://krimdok.uni-tuebingen.de/Record/1618534424 SN 9789186027117 K1 Schule : Mobbing : Prävention : Effizienz K1 Mobbing K1 Bullying K1 Schule K1 Präventionsprogramme K1 Wirksamkeit K1 Evaluation